TY - GEN
T1 - Powder injection molding of copper and the effect of sintering temperature on its mechanical properties
AU - Panahi, Ali Keshavarz
AU - Khoshkish, Hossein
PY - 2010
Y1 - 2010
N2 - In this article, the fabrication steps of copper parts, using the powder injection molding method have been investigated. For the purpose of this study, first, several feedstocks were prepared by mixing copper powder (in volume percentages of 60, 64, 68, and 72%) and a thermoplastic binder. Due to the sensitivity of the mixing stage in the powder injection molding process, the Extrumixing method was utilized to appropriately mix the copper powder with the binder. Rheological characteristics of the different feedstocks were analyzed by means of a capillary rheometer. Based on this analysis, the feedstock having a 68 vol. % copper powder was selected as the optimum powder, out of which, samples shaped like tensile test specimens were successfully molded. These samples were later debinded by the solvent debinding method. Sintering of the pieces was carried out at different temperatures. Research showed that raising the sintering temperature leads to an increase of density and tensile strength of the specimens.
AB - In this article, the fabrication steps of copper parts, using the powder injection molding method have been investigated. For the purpose of this study, first, several feedstocks were prepared by mixing copper powder (in volume percentages of 60, 64, 68, and 72%) and a thermoplastic binder. Due to the sensitivity of the mixing stage in the powder injection molding process, the Extrumixing method was utilized to appropriately mix the copper powder with the binder. Rheological characteristics of the different feedstocks were analyzed by means of a capillary rheometer. Based on this analysis, the feedstock having a 68 vol. % copper powder was selected as the optimum powder, out of which, samples shaped like tensile test specimens were successfully molded. These samples were later debinded by the solvent debinding method. Sintering of the pieces was carried out at different temperatures. Research showed that raising the sintering temperature leads to an increase of density and tensile strength of the specimens.
U2 - 10.1115/IMECE2010-38409
DO - 10.1115/IMECE2010-38409
M3 - Conference contribution
AN - SCOPUS:84881405783
SN - 9780791844274
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 19
EP - 23
BT - Design and Manufacturing
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
Y2 - 12 November 2010 through 18 November 2010
ER -